| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| 2024 | R | 524 | 2,628 | 3,200 | |
| 2020 | R | 654 | 2,786 | 3,495 | |
| 2016 | R | 814 | 2,505 | 3,375 | |
| 2012 | R | 880 | 2,153 | 3,141 | |
| 2008 | R | 1,048 | 2,223 | 3,381 | |
| 2004 | R | 1,562 | 2,030 | 3,624 | |
| 2000 | R | 1,563 | 1,862 | 3,507 | |
| 1996 | D | 2,211 | 1,025 | 3,575 | |
| 1992 | D | 2,366 | 1,154 | 3,956 | |
| 1988 | R | 1,688 | 1,947 | 3,656 | |
| 1984 | R | 1,437 | 2,407 | 3,876 | |
| 1980 | D | 1,928 | 1,855 | 3,895 | |
| 1976 | D | 2,836 | 813 | 3,649 | |
| 1972 | R | 873 | 2,186 | 3,059 | |
| 1968 | D | 875 | 693 | 3,582 | |
| 1964 | D | 1,812 | 1,476 | 3,310 | |
| 1960 | D | 1,680 | 734 | 2,636 | |
| 1956 | D | 1,504 | 917 | 2,440 | |
| 1952 | D | 1,664 | 871 | 2,541 | |
| 1948 | D | 1,020 | 260 | 1,678 | |
| 1944 | D | 1,117 | 465 | 1,585 | |
| 1940 | D | 1,069 | 336 | 1,408 | |
| 1936 | D | 1,321 | 282 | 1,606 | |
| 1932 | D | 1,743 | 158 | 1,911 | |
| 1928 | D | 1,000 | 613 | 1,621 | |
| 1924 | D | 730 | 386 | 1,181 | |
| 1920 | D | 962 | 842 | 1,845 | |
| 1916 | D | 1,061 | 655 | 1,716 | |
| 1912 | D | 647 | 376 | 1,186 | |
| 1908 | D | 1,103 | 812 | 1,974 | |
| 1904 | R | 639 | 648 | 1,315 | |
| 1900 | D | 856 | 496 | 1,361 | |
| 1896 | D | 1,145 | 633 | 1,783 | |
| 1892 | D | 960 | 604 | 1,636 | |
| 1888 | — | — | — | — | |
| 1884 | — | — | — | — | |
| 1880 | — | — | — | — | |
| 1876 | — | — | — | — |
Prairie County's population has declined steadily for decades, leaving a sparse, agriculture-dominated electorate that delivered a 65-point Republican margin in 2024 — among the widest gaps in the state.
The unraveling was not abrupt. The Democratic margin in Prairie County peaked at eighty-three points in 1932; it narrowed steadily over the late twentieth century. The 2000 election delivered the county to the Republican party for the first time in many years, by a margin of nine points. By 2024, the margin had widened further.
The economic and demographic context is severe. Prairie County's median household income of $51,646 is among the lowest of any county in the United States; 12% of residents live below the federal poverty line. The county's voting pattern over the last decade is most similar to that of Cross County and Perry County.
